Bug Description

201011-6830.

This laptop has dedicated buttons to mute both output (speakers/headphones) and input (internal/external microphone). Neither button works; they don't even generate a keycode. Other dedicated buttons on the same panel (volume up/down) work correctly.

This was tested on fully-updated Ubuntu 12.04, as well as a daily Quantal image with 3.4 kernel, results are the same on both.

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report at bugzilla.kernel.org [1]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

If you are comfortable with opening a bug upstream, It would be great if you can report back the upstream bug number in this bug report. That will allow us to link this bug to the upstream report.

We're not entirely sure this was tested properly with older releases, so we'd have to retest to make sure. @Daniel, can you see if it was actually failing on Oneiric? I think we know it was failing on Natty at least.